CN113182313A - Multi-source organic solid waste disposal system and method for recycling pollutants - Google Patents
Multi-source organic solid waste disposal system and method for recycling pollutants Download PDFInfo
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- CN113182313A CN113182313A CN202110225741.XA CN202110225741A CN113182313A CN 113182313 A CN113182313 A CN 113182313A CN 202110225741 A CN202110225741 A CN 202110225741A CN 113182313 A CN113182313 A CN 113182313A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/02—Biological treatment
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/02—Biological treatment
- C02F11/04—Anaerobic treatment; Production of methane by such processes
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F17/00—Preparation of fertilisers characterised by biological or biochemical treatment steps, e.g. composting or fermentation
- C05F17/90—Apparatus therefor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/40—Bio-organic fraction processing; Production of fertilisers from the organic fraction of waste or refuse
Abstract
The invention relates to a pollutant recycling multi-source organic solid waste treatment system and method. And the foul smell of the anaerobic pre-treatment system and the foul smell of the aerobic composting treatment system are respectively introduced into the air inlet of the cement kiln cooperative treatment system through exhaust ports. The system and the method provided by the invention realize the conversion of the pollution property of the high-temperature flue gas in the multi-source organic solid waste process cooperatively treated in a single park to the resource property, fully utilize the nitrogen oxide and the high-temperature heat energy in the flue gas to carry out the cracking pretreatment before anaerobic digestion of sludge, and in addition, the system thoroughly solves the problem caused by bad odor in the organic solid waste biological treatment process.
Description
Technical Field
The invention belongs to the technical field of organic solid waste treatment, and particularly relates to a multi-source organic solid waste treatment system and method for recycling pollutants.
Background
At present, the annual output of urban solid waste in the world is about 20 hundred million tons, and is estimated to reach 30 hundred million tons in 2025 years, and the urban solid waste has the characteristics of high organic matter and high water content along with the increase of population and the acceleration of industrialization process. With the increasing living standard and urbanization standard of people, more and more organic solid wastes (hereinafter referred to as organic solid wastes) are generated. In China, the organic solid waste accounts for 40-70% of the total amount of the municipal solid waste, and has various sources, including kitchen waste, municipal sludge, food industrial sludge, papermaking waste, traditional Chinese medicine waste and the like. Because the organic solid waste has the characteristics of high calorific value, high water content, more nutrient elements, better biodegradability and the like, the organic solid waste is often separately treated from the inorganic solid waste. However, in the face of various organic solid waste sources, the existing engineering-scale organic solid waste treatment still follows the mode of 'single organic solid waste-single treatment process'. Although there are technologies for the synergistic treatment of two solid wastes, such as the co-anaerobic digestion of kitchen waste and municipal sludge, etc. For example, CN111282962A discloses a method for co-processing organic solid waste and kitchen waste, which is to perform anaerobic fermentation on the organic solid waste and the kitchen waste in a co-operative manner. However, no feasible and effective cooperative disposal park system for multi-source organic solid waste such as kitchen waste, municipal sludge, food industrial sludge, papermaking waste residues, traditional Chinese medicine waste residues and the like exists, and a multi-process cooperative disposal system aiming at zero emission of pollutants is lacked.
At present, the flue gas of the cement kiln contains a large amount of thermal NOx and heat due to the characteristic of high temperature (1750 ℃ in the rotary kiln) of the cement kiln process, and is always treated as a pollutant. CN111957205A discloses a cement kiln high temperature high dust SCR deNOx systems, has adopted the design of honeycomb formula catalyst cooperation air soot blower according to the environment of high temperature high dust, through improving box inner structureThe nitrogen-ammonia mixture has uniform flow field distribution and concentration distribution, and the denitration efficiency of the SCR denitration system is improved. DOI: 10.11949/0438-1157.20200899 report on NO facing smokexThe novel adsorption process for purifying and recovering NO in the flue gas2The concentration is improved to more than 2 percent from 20ppm of the raw material gas. However, no method for reasonably utilizing the flue gas of the cement kiln exists at present, so that the recycling of pollutants in a park is realized.
Disclosure of Invention
Aiming at the defects, the invention provides a multi-source organic solid waste disposal system and method for recycling pollutants, which effectively and synergistically treat organic solid wastes from various sources, rely on cement kiln synergistic treatment as a key process of material reduction of the whole system and couple an anaerobic digestion treatment technology and a sludge pretreatment technology by a flue gas method.
The invention provides the following technical scheme: a multi-source organic solid waste treatment system for recycling pollutants comprises an anaerobic pre-pretreatment system, an anaerobic digestion treatment system, a cement kiln cooperative treatment system and an aerobic composting treatment system;
a solid discharge port of the anaerobic pre-treatment system is communicated with the anaerobic digestion treatment system, and the anaerobic pre-treatment system comprises a flue gas method pretreatment tank;
a biogas residue discharge port of the anaerobic digestion treatment system is respectively communicated with the cement kiln cooperative treatment system and the aerobic compost treatment system;
pretreatment systems's foul smell gas vent before the anaerobism and aerobic composting processing system's foul smell gas vent lets in jointly cement kiln is processing system in coordination, cement kiln is processing system in coordination's high temperature flue gas vent lets in pretreatment systems before the anaerobism.
Further, the flue gas method pretreatment tank comprises an aeration device, a stirring device, a gas reflux device, a solid waste feeding hole and a solid waste discharging hole; the gas reflux device consists of a flue gas inlet and a foul gas outlet.
Further, the pressure in the flue gas pretreatment tank is 70-90 kPa.
The invention also provides a multi-source organic solid waste disposal method for recycling pollutants by adopting the system, which comprises the following steps:
1) according to different sources of the organic solid wastes of the pollutants, the organic solid wastes of the pollutants are respectively fed into the anaerobic pre-treatment system and the cement kiln co-treatment system in different treatment systems;
2) the pollutants entering the pretreatment system before the anaerobic treatment are pretreated to obtain a solid-liquid mixed phase, and the solid-liquid mixed phase enters the anaerobic digestion treatment system for anaerobic digestion;
3) dehydrating and drying biogas residues digested by the anaerobic digestion treatment system, mixing the biogas residues with the water content of less than 60% with pollutants needing to enter the cement kiln co-treatment system for treatment in the step 1), and performing co-treatment in the cement co-treatment system; conveying biogas residues with the water content of 60-85% to the aerobic composting treatment system, and doping rice chaff and paper scraps into the aerobic composting treatment system for aerobic composting treatment, so that the water content of the whole compost is reduced, and the void ratio of the compost is improved;
4) pretreatment systems's foul smell gas vent before the anaerobism and the foul smell gas vent of aerobic composting processing system is collected directly lets in cement kiln is handled the system in coordination with burning and is dealt with, the marsh gas that produces in the anaerobic digestion processing system obtains comparatively pure biogas after the purification.
Further, the temperature of high-temperature flue gas generated by the cement kiln co-processing system and used for flue gas pretreatment is 300-400 ℃, and NO in the flue gas in the cement kiln co-processing systemxThe concentration is more than 800mg/Nm3；
The mass ratio of the high-temperature flue gas flow in the flue gas method pretreatment tank in the anaerobic pretreatment system to the solid material is 2.5-10.0 Nm3/kg。
The invention has the beneficial effects that:
1. the invention effectively and synergistically treats the organic solid wastes from various sources, relies on the cement kiln synergistic treatment as a key process of material reduction of the whole system, couples the anaerobic digestion treatment technology and the flue gas method sludge pretreatment technology, establishes a synergistic treatment mode of 'one pollutant-multiple treatment process' and 'multiple pollutants-one treatment process' of the organic solid wastes, and is beneficial to forming scale effect, centralized control of pollutants and proper treatment of the final product of the organic solid waste treatment. From the material flow perspective, the organic solid wastes from different sources finally flow out in the form of natural gas, cement and fertilizer, so that the emission of gas-solid-free secondary pollutants in the treatment and disposal of the organic solid wastes is realized; from the perspective of energy flow, the organic solid waste realizes high-efficiency recycling of heat energy, chemical energy and biomass energy among different treatment facilities. Meanwhile, high-temperature flue gas and foul smell are fully utilized in terms of materials and energy, conversion from pollution property to resource property is achieved, traditional denitration and deodorization processes are omitted, project investment and land resources are saved, energy utilization efficiency is improved, anaerobic digestion process period is shortened, problems caused by foul smell are eliminated, and remarkable economic benefits and environmental protection benefits are obtained. The method has the advantages that the method takes the high-efficiency utilization and the cyclic utilization of resources as the core, has better demonstration benefits in the aspects of energy conservation, environmental protection and the like, is beneficial to the integration and linkage of technologies and projects, forms a complete industrial chain pattern, improves the utilization rate of energy sources and the utilization rate of equipment, and achieves more economy from the aspects of energy and materials.
2. Food sludge, municipal sludge and kitchen waste are subjected to sorting, impurity removal and crushing, then are subjected to anaerobic digestion treatment, pharmaceutical waste residues, household waste and papermaking waste residues are subjected to crushing and mechanical dehydration, then are mixed and fed into a rotary cement kiln in a cement kiln cooperative treatment system for cooperative incineration treatment, and multi-source organic solid waste cooperative treatment is realized by adopting different process route combination modes according to the characteristics of different pollutants.
3. Flue gas generated after the cement rotary kiln in the cement kiln cooperative disposal system is cooperatively disposed passes through the sludge drying device to be dried into biogas residue by heat, and then enters the flue gas method pretreatment tank to realize sludge disintegration and secondary pollutant utilization.
Drawings
The invention will be described in more detail hereinafter on the basis of embodiments and with reference to the accompanying drawings. Wherein:
FIG. 1 is a schematic diagram of the system of the present invention;
FIG. 2 is a schematic view of a flue gas pretreatment tank according to the present invention;
in the figures, the reference numbers represent structures: 1. a pre-anaerobic treatment system; 1-1, a flue gas pretreatment tank; 2. an anaerobic digestion treatment system; 2-1, an anaerobic digestion tank; 3. a cement kiln co-disposal system; 3-1, cement rotary kiln; 4. an aerobic compost disposal system; 4-1, composting; 4-2 and a compost exhaust device.
Detailed description of the preferred embodiments
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
As shown in fig. 1, the multi-source organic solid waste disposal system for recycling pollutants provided by this embodiment is characterized by comprising an anaerobic pre-pretreatment system 1, an anaerobic digestion treatment system 2, a cement kiln co-treatment system 3, and an aerobic composting treatment system 4;
a solid discharge port of the pretreatment system 1 before the anaerobic treatment is introduced into an anaerobic digestion treatment system 2;
a biogas residue discharge port of the anaerobic digestion treatment system 2 is respectively communicated with a cement kiln cooperative treatment system 3 and an aerobic composting treatment system 4;
the foul smell exhaust port of the anaerobic pre-treatment system 1 and the foul smell exhaust port of the aerobic composting treatment system 4 are both introduced into the cement kiln co-treatment system 3, and the high-temperature flue gas exhaust port of the cement kiln co-treatment system 3 is introduced into the anaerobic pre-treatment system 1.
The water content of the biogas residues which are introduced into the aerobic composting treatment system from the biogas residue discharge port of the anaerobic digestion treatment system 2 is 60-85%.
As shown in fig. 2, the anaerobic pre-treatment system 1 includes a flue gas method pretreatment tank 1-1; the flue gas method pretreatment tank 1-1 comprises an aeration device 1-11, a stirring device 1-12, a gas reflux device 1-13, a solid waste feeding hole 1-14 and a solid waste discharging hole 1-15; the gas reflux device 1-13 is composed of a flue gas inlet 1-131 and a foul gas outlet 1-132.
The pressure in the pretreatment tank 1-1 by the flue gas method is 70 kPa-90 kPa. A vacuum pump can be additionally arranged at an exhaust port of the flue gas method pretreatment tank 1, and the exhaust port is exhausted outwards and is discharged into the cement kiln cooperative treatment system 3, so that negative pressure is formed in the flue gas method pretreatment tank 1-1, and the leakage of flue gas and malodorous gas is prevented. Feeding mixed sludge from a feed inlet, laying an aeration device at the bottom of the tank, blowing high-temperature flue gas into the mixed sludge, arranging a stirring device in the tank to fully contact gas and solid, and adding NO into the mixed sludge2Dissolving in sludge to break cells. The tank top is provided with an exhaust port for exhausting residual flue gas and malodorous gas generated by sludge in the anaerobic process. The exhaust pipe is provided with a return pipeline, and the NO in the residual flue gas is realized by controlling the flow of the air pump to adjust the reflux ratio2The full utilization of the water is realized.
The anaerobic digestion treatment system 2 includes an anaerobic digestion tank 2-1 and a solid-liquid separator. The separated biogas slurry is treated by a sewage station and then discharged into a pipe network, and the biogas residue is separated into biodegradable components and non-biodegradable components. The biogas generated by anaerobic digestion is purified to obtain relatively pure biogas, and can be merged into a town natural gas pipe network.
The aerobic compost treatment system 4 comprises a compost bin 4-1 and a compost exhaust device 4-2; the air outlet of the composting bin 4-1 is connected with a composting air exhaust device 4-2. After the aerobic composting treatment system 4 receives the biodegradable biogas residues, the biodegradable biogas residues are mixed with rice chaff and paper scraps in a certain proportion, so that the water content of the whole compost is reduced, and the porosity of the compost is improved.
Pollutants treated by the anaerobic pre-treatment system 1 include food sludge, municipal sludge and kitchen waste.
The pollutants treated by the cement kiln cooperative treatment system 3 comprise pharmaceutical waste residues, household garbage and papermaking waste residues.
Example 2
The embodiment is a pollutant recycling multi-source organic solid waste disposal method adopting the system provided by the embodiment 1, and the method comprises the following steps:
1) according to different sources of organic solid wastes of pollutants, the organic solid wastes are respectively fed into an anaerobic pre-pretreatment system 1 and a cement kiln co-treatment system 3 in different treatment systems;
2) municipal sludge and food industry sludge are mixed and then enter a flue gas method pretreatment tank 1, and pretreated sludge is obtained after high-temperature flue gas pretreatment. The kitchen waste is pretreated by sorting, impurity removing, crushing, pulping and three-phase separation to obtain an oil phase and a solid-liquid mixed phase, and the pretreated sludge is mixed with the solid-liquid mixed phase obtained by pretreating the kitchen waste and then enters an anaerobic digestion tank 2 for anaerobic digestion;
3) dehydrating and drying the biogas residues digested by the anaerobic digestion treatment system 2, mixing the pharmaceutical waste residues, the domestic garbage and the papermaking waste residues which are pollutants needing to be treated by the cement kiln cooperative treatment system 3 in the step 1 of the biogas residues with the water content of less than 60%, and performing cooperative treatment in a cement rotary kiln 3-1 of the cement cooperative treatment system 3; conveying biogas residues with the water content of 60-85% to a composting bin 4-1 in an aerobic composting treatment system 4, doping rice chaff and paper scraps for aerobic composting treatment, reducing the water content of the whole compost, improving the void ratio of the compost, and selling compost finished products to obtain economic benefits;
4) foul smell collected by a foul smell exhaust port of a flue gas method pretreatment tank 1-1 of the anaerobic pre-treatment system 1 and a foul smell exhaust port of a compost arranging device 4-2 of the aerobic compost disposal system 4 are directly introduced into a cement rotary kiln 3-1 in the cement kiln cooperative disposal system 3 to be incinerated, biogas generated in an anaerobic digestion tank 2-1 of the anaerobic digestion treatment system 2 is purified to obtain relatively pure biogas, the biogas can be incorporated into a town natural gas pipe network to obtain economic benefits, and the biogas can also be used as supplementary fuel to be directly introduced into the cement rotary kiln 3 to be combusted.
The household garbage is subjected to sorting impurity removal and crushing, the pharmaceutical waste residue is subjected to crushing and mechanical dehydration, and the papermaking waste residue is crushed and then mixed and fed into a cement rotary kiln 3 for incineration disposal;
the flue gas after the cement kiln is co-processed passes through a sludge drying device to be dried by heat to form biogas residues, and then enters a flue gas method pretreatment tank 1-1 to realize sludge disintegration and secondary pollutant utilization.
The temperature of high-temperature flue gas generated by the cement kiln co-processing system 3 and used for flue gas pretreatment is 300-400 ℃, and NO in the flue gas in the cement kiln co-processing system 3xThe concentration is more than 800mg/Nm3；
The mass ratio of the flow rate of high-temperature flue gas 1-1 in the pretreatment tank by a flue gas method in the pretreatment system 1 before anaerobic treatment to the solid material is 2.5-10.0 Nm3/kg。
The household garbage is subjected to sorting impurity removal and crushing, the pharmaceutical waste residue is subjected to crushing and mechanical dehydration, and the papermaking waste residue is crushed and then mixed and fed into a cement rotary kiln 3 for incineration disposal;
the flue gas after the co-treatment of the cement kiln firstly passes through the sludge drying device to dry the biogas residues by using heat, and then enters the flue gas method pretreatment tank 1 to realize sludge disintegration and secondary pollutant utilization.
While the invention has been described with reference to a preferred embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In particular, the technical features mentioned in the embodiments can be combined in any way as long as there is no structural conflict. It is intended that the invention not be limited to the particular embodiments disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.
Claims (5)
1. A multi-source organic solid waste treatment system for recycling pollutants is characterized by comprising an anaerobic pre-pretreatment system (1), an anaerobic digestion treatment system (2), a cement kiln cooperative treatment system (3) and an aerobic compost treatment system (4);
a solid discharge hole of the anaerobic pretreatment system (1) is communicated with the anaerobic digestion treatment system (2), and the anaerobic pretreatment system (1) comprises a flue gas method pretreatment tank (1-1);
a biogas residue discharge hole of the anaerobic digestion treatment system (2) is respectively communicated with the cement kiln cooperative treatment system (3) and the aerobic compost treatment system (4);
the foul smell gas vent of pretreatment systems (1) before the anaerobism and the foul smell gas vent of aerobic composting processing system (4) lets in jointly cement kiln is processing system (3) in coordination, the high temperature flue gas vent of cement kiln is processing system (3) in coordination lets in pretreatment systems (1) before the anaerobism.
2. The multi-source organic solid waste disposal system for contaminant recycling according to claim 1, wherein the flue gas method pretreatment tank (1-1) comprises an aeration device (1-11), a stirring device (1-12), a gas reflux device (1-13), a solid waste inlet (1-14) and a solid waste outlet (1-15); the gas reflux device (1-13) is composed of the flue gas inlet (1-131) and a foul gas outlet (1-132).
3. The pollutant recycling multi-source organic solid waste disposal system according to claim 1, wherein the pressure in the flue gas method pretreatment tank (1-1) is 70-90 kPa.
4. A multi-source organic solid waste disposal method for recycling pollutants by adopting the system of any one of claims 1 to 3, which is characterized by comprising the following steps:
1) according to different sources of the organic solid wastes of the pollutants, the organic solid wastes of the pollutants are respectively fed into the anaerobic pre-treatment system (1) and the cement kiln co-treatment system (3) in different treatment systems;
2) the pollutants entering the pretreatment system (1) before the anaerobic treatment are pretreated to obtain a solid-liquid mixed phase, and the solid-liquid mixed phase enters the anaerobic digestion treatment system (2) for anaerobic digestion;
3) dehydrating and drying the biogas residues digested by the anaerobic digestion treatment system (2), mixing the biogas residues with the water content of less than 60% with the pollutants needing to enter the cement kiln co-treatment system (3) for treatment in the step 1), and performing co-treatment in the cement co-treatment system (3); conveying the biogas residues with the water content of 60-85% into the aerobic composting treatment system (4) and doping rice chaff and paper scraps into the aerobic composting treatment system for aerobic composting treatment, so that the water content of the whole compost is reduced, and the void ratio of the compost is improved;
4) the foul smell gas vent of pretreatment systems (1) before the anaerobism and the foul smell gas vent of aerobic composting processing system (4) is collected directly lets in cement kiln is handled system (3) in coordination and is burnt the processing, the marsh gas that produces in the anaerobic digestion processing system (2) obtains comparatively pure biogas after purifying.
5. The pollutant recycling multi-source organic solid waste disposal method according to claim 4, wherein the temperature of high-temperature flue gas generated by the cement kiln co-disposal system (3) and used for flue gas pretreatment is 300-400 ℃, and NO in the flue gas in the cement kiln co-disposal system (3)xThe concentration is more than 800mg/Nm3；
The mass ratio of the high-temperature flue gas flow and the solid material in a flue gas method pretreatment tank (1-1) in the anaerobic pretreatment system (1) is 2.5-10.0 Nm3/kg。
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114181722A (en) * | 2021-12-09 | 2022-03-15 | 中国科学院青岛生物能源与过程研究所 | Multi-source solid waste cooperative heat treatment device and method |
| CN114535254A (en) * | 2022-02-24 | 2022-05-27 | 安徽海螺建材设计研究院有限责任公司 | Organic coupling system of cement kiln and kitchen garbage |
| CN115028332A (en) * | 2022-05-19 | 2022-09-09 | 同济大学 | Flue gas denitration and sludge anaerobic digestion cooperative treatment circulation method |
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